I have a confusion about using DMA channels while writing to EPROM (BSO bit set). The manual says that I can use DMA channels 7-8 with any packing mode, but then again it says that when the BSO bit is set, PMODE bits are disregarded.
My questions is, if I have both an EPROM and an external RAM connected, should the accesses to these two should be exclusive?
That is, when I'm write/read from EPROM (BSO bit set), I should not have any other DMA in progress to the external memory?
For example, if I start a DMA in channel 9 to write to my external memory, can I start another DMA in channel 8 to write to EPROM (BSO bit set)? In this case will DMA 8 start after DMA 9 is complete, or it will interfere and corrupt the ongoing DMA 9?